Meanwhile I spied another hand made steel frame and fork, my Rothair, and bought that.
I'm away at the moment so can't give you exact measurement but it fits me at 5'10". The frame number is 55
27.2 seatpost, 1" non threaded steerer, QR wheels, long drop rim brakes mudguard mounts
The pics show the candy red, and the bike as it was built up before. The previous owner had a bad back hence the stack of spacers

Ricky doesn't do F+F alone anymore, but as a guide, complete bikes are between 10 and 15K
600 posted to your door or I'll deliver within an hour of SK22
https://photos.app.goo.gl/r2xd9tikFRpjobYE9